Heating system



E. E; SCHELLHAMER.

HEATING SYSTEM.

APPLICATION FILED SEPT. 6, 192].

1,400,831 Patented Dec. 20, 1921.

ELMEB, E. SCHELLHAMEB, O35 READING, PENNSYLVANIA, ASSIGNQR OF ONE-FOURTH T6 ADAM P. HAFER, 0F READING, PENNSYLVANIA.

HEATING SYS'I'EM.

arousal.

Patented Dec. 2Q, 1921..

Application filed September 6, 1921. Serial No. 498,705.

T 0 all w 700m it may concern Be it known that l, Emmi: l Scrimm- HAMER, a citizen of the United States, residing at Reading, in the county of Berks and State of Pennsylvania, have invented certain new and useful improvements in Heating Systems, of which the following is a specification.

This invention relates to improvements in heating systems, and it intended more particularly for application to hot air heater, such as is commonly used in dwelling houses.

In heaters of this class, tl e air which is to be heated and sent into the didercnt portions of the house, is drawn into the furnace from the cellar, and in many cases impure air is thus constantly sent into the dwelling rooms.

in my present invention, I draw the air that is later to be distributed into the rooms, from one of said rooms or other portion of the house, as for instance, the hall or other part in which the air may be considerably below the average for the house generally.

By this means, I not only do not distribute the cellar air into the house, but 1 am not called upon to heat cold constantly, as the air returned to the heater in my deice is at least partially warmed, and this constant return of the pro-heated air to the furnace and its distribution over the house, will be accomplished with a very material saving in fuel, for the reason that it will not be necessary to keep a drawing the but for a short time after starting it; even in very cold weather this pro-heated air will not necessitate the firing up of the furnace within fifty per cent. of that required with the old form of system described above.

Another feature of my invention is the ease with which the draft through the furnace may be regulated.

This is accomplished by merely opening or closing one or more heat registers in the rooms of the house, which will regulate the entrance and exit of air into and from the furnace.

It will not be necessary to go below stairs unless to replenish the coal on the fire, or to remove ashes.

The invention is more fully described in the following specification and clearly illustrated in the accompanying drawing, in which ure l is a plan view showing my in- 'on as applied in simple form to an ordinary cellar furnace.

2 is an elevational view thereof,

showing he first floor above the furnace in section taken through the heat registers therein. D The numeral 1 designates a cellar heating furnace of ordinary construction. I have shown the furnace provided with the usua doors, but in this case the upper door will be used only to supply coal to the fire and the lower door only to removeashes from the pit, the regulation of air through the furnace being accomplished independently of these openings.

The numeral 2 designates the usual heat fines, of which there may be any number,

each of which terminates in a register 8,

suitably placed in the floor 9 or a wall.

The numeral 8 designates the smoke flue,

which leads from the fire box: to the chimney 10 as usual. This flue is provided with plurality of perforations 7 the use of which will be described later.

The numeral 4 designates what may: be termed the cold air return flue. This fine communicates at one end with the furnace at point below the fire grate, and the other end terminates in a register 8, located in any desirable place from which the air to be heated is to be drawn. There may be, obviously, a plurality of these cold air tubes, so that the inlet of air to the furnace may be regulated from different portions of the house.

The numeral 5 designates what i term a superfluous cold air tube, and this tube is also provided at its entrance with a register, placed in any desired portion of the house. The other end of the tube terminates inside of a box 6 and forms the only opening into the box.

This box 6 is built around the smoke flue 3 at the point in which it is provided with the perforations 7, described above, and the inlet of air into the smoke flue through tiese perforations is the only way in which the draft of air from the furnace through the chimney may be regulated. It is therefore .evident, that to regulate the draft, all that is necessary is to open or close the register at the entrance of the flue 5, while the inlet of air to the ash pit may be decided by the register on the flue i. It is obvious that there may be a plurality of outlets or inlets for the tube 5, each of which is provided with a register, so that the entrance of air into the box 6 may be accomplished from any point of the house.

It is evident that any suitable damper device may be used in the box 6, but I have shown the invention in its simplest form, by merely providing the air inlets into the smoke flue from this box.

It is also evident that different portions of the invention may be modified Without departing from the spirit of the invention disclosed, and described in the above speciperforated portion of the smoke flue and the end of said tube, and a cold air inlet lead ing from an opening in the floor to a point below the furnace grate, the openings of both said tubes at the floor being provided With closures.

2. In a heating system, the combination of a furnace, a smoke flue leading therefrom and provided with a perforation, a box surrounding the tube andinclosing said perforation, a cold air tube leading into the box, the other end of the tube being provided with a closure by means of Which the entrance of air into the box may be regulated, and a cold air tube provided With a closure at one end and terminating in the furnace at a point below the grate, said closure being provided with means for regulating the entrance of air into the furnace.

3. The combination of aheating furnace,

hot air flues leading therefrom, a cold air tube leading to the furnace at a point below the grate, and whose other end is provided NVltll a means for regulating thefiow of air thereinto, a smoke flue provided with a plurality of perforations, a box surrounding the smoke flue and inclosing the perforations, and a cold air tube one end of which termin-ates Within said box and the other end of which is provided With means for regulating the entrance of air; into said box, whereby the draft of air through the furnace may be regulated.

In testimony whereof I aflix my signature.

ELMER E. SCHELLHAMER. 

